Cool Gear 32 Oz Stainless Steel Water Bottle - Waterville - Ez-freeze - BPA Free - Flip Top - Straw 32oz Stainless steel water bottle No bisphenol A (BPA) High quality Grade 304 stainless steel - Durable and sanitary - Excellent resistance to stain or rust Can be used with EZ-Freeze freeze stick (not-included). Flip & flow cap